Technical Abstract:
Strategies for sampling particulate matter (PM) from agricultural sources vary depending on the type of source, the objective of sampling the particular source, and the PM characteristics. Agricultural point or area sources may require different categories of samplers, stack or ambient, and those categories are may be further segregated based on the particle size of interest: total suspended particulate, PM10, and PM2.5. For ambient PM sampling in particular, sampler array configuration(type, number, and siting)is influenced by the purpose for conducting the sampling. For example, sampler configuration for evaluating an abatement strategy could differ from that for determining total emissions from a site. The PM size and concentration can impact sampler performance and, thus, influence sampler type and location. This presentation provides an overview of the sampler types used for agricultural PM sampling and discusses the factors that influence sampler selection and siting.